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STGeomFromText (geography data type) |
Returns a **geography** instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation augmented with any Z (elevation) and M (measure) values carried by the instance. |
MladjoA |
mlandzic |
randolphwest |
05/10/2024 |
sql |
t-sql |
reference |
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[!INCLUDE SQL Server Azure SQL Database Azure SQL Managed Instance FabricSQLDB]
Returns a geography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation augmented with any Z (elevation) and M (measure) values carried by the instance.
This geography data type method supports FullGlobe instances or spatial instances that are larger than a hemisphere.
STGeomFromText ( 'geography_tagged_text' , SRID )
The WKT representation of the geography instance to return. geography_tagged_text is nvarchar(max).
An int expression representing the spatial reference ID (SRID) of the geography instance to return.
- [!INCLUDE ssNoVersion] return type: geography
- CLR return type:
SqlGeography
The OGC type of the geography instance returned by STGeomFromText() is set to the corresponding WKT input.
This method throws an ArgumentException if the input contains an antipodal edge.
Note
The order in which the points are listed matters for geography polygons. It determines if the polygon area is to the inside or outside of the given ring. For more information, see Polygon.
The following example uses STGeomFromText() to create a geography instance.
DECLARE @g geography;
-- Starting point: Lat. 47.656, Lon. -122.360
-- Ending point: Lat. 47.656, Lon. -122.343
SET @g = geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326);
SELECT @g.ToString();